Elbow, Wrist, Hand Flashcards
During elbow pronation, the radial head glides ________.
Posteriorly (pronation posterior)
Falling backward onto the palm of an extended arm results in the radial head moving ________.
Anteriorly (the distal radius would move posteriorly in this case)
During elbow flexion, the radial head glides ________ on the capitulum.
Anteriorly
The anatomical snuffbox is formed by the ________ medially, and the ________ and ________ laterally.
Extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus
A positive grind test at the carpometacarpal joint of the thumb indicates ________.
Osteoarthritis
Falling forward onto the palm of an outstretched hand results in the distal radius moving more ________.
Anterior (this would result in the radial head moving posterior as well)
A positive ________’s test is a sign of DeQuervain’s Tenosynovitis.
Finklestein
Kienbock’s disease is osteonecrosis of the ________.
Lunate
The most common cause of lateral elbow pain is ________. This can be due to an inappropriate backhand swing in tennis or repetitive motions.
Lateral epicondylitis
Supination and pronation occur at the ________ with a total range of approximately ________ degrees.
Radioulnar, 180
During elbow supination, the radial head glides ________.
Anteriorly
DeQuervain’s Tenosynovitis is inflammation of the tendons and sheaths of the ________ and ________ muscles.
Extensor pollicis brevis, abductor pollicis longus
Tenderness in the anatomical snuffbox after a fall on an outstretched hand indicates a ________ fracture.
Scaphoid
If the distal radius is anterior, that means that the radial head has to be ________.
Posterior (think of it like a seesaw, only one side can be anterior or posterior at a time)
The wrist can move approximately ________ degrees in flexion and extension, ________ degrees in pronation and supination, ________ degrees in ulnar deviation, and ________ degrees in radial deviation.
60-80, 80-90, 30, 20
During elbow extension, the radial head glides ________ on the capitulum.
Posteriorly
A baseball pitcher or golfer can develop ________ elbow pain due to strain on this side of the elbow.
Medial
Flexion and extension occurs at the ________ joint. Flexion has approximately ________ degrees of motion and extension has approximately ________ degrees of motion.
Ulnohumeral, 145-150, 5-10
A scaphoid fracture may not appear on an X-ray until ________ weeks later. It is important to catch because a fracture there can lead to ________.
1-2, avascular necrosis
When the radial head is stuck in the posterior position, the ability to ________ (motion) is restricted.
Supinate
